Improvement in coal-hole covers



tttt Etats? este Ctffft LEWIS A. KIMBERLY, OF NEW HAVEN, ASSIGNOR FCRCNE-HALF HIS RIGHT TO GEORGE E. KIMBERLYQ OFv GUILEORD, CONNECTICUT.

i Letters Patent No. 109,422, dated November 22, 1870.

IMPROVEMENT IN COAL-HOLE COVERS.

The Schedule referred to in these Letters Patent and making part of thesame.

To all/whom it may concern:

Be it known that I, LEWIS A. Kumkum', of New Haven, in the count-y of,New Haven and State of Connecticut, have invented anew and usefulImprovement in Covers for Coal-Holes and Fastenings; and I do herebydeclare that the following is a full 'and exact description of the same,reference being hadto the accompanying drawing and to the letters ofreference marked thereon.

Figure 1 is a section of my improvement, showing the legs thrown outwardoperating upon the wall.

Figurcf.. is a section, showing the legs held together ymy inyention, Iwill proceed to describe the construction andoperation ot' the same withreference to the accompanying drawing and the letters of referencemarked thereon. i

A represents the cover made to lit over the aperture in the sidewalk,wit-l1 a flange, B, upon the under side., to prevent the said cover frombeing displaced byany lateral pressure that may he brought to bear uponit.

C and D are two spring bars or legs extending downward from the centerof the cover, to which they are held in any convenient way, so that theybe firmly fastened to the same. p The legs C and I) are provided withfeet E, placed at their lower extremities and turned outward, either atright angles or slightly hook-shaped, as may be found most effectual invgrasping the wall.

Upon the inner portion ot' the-leg C, lnear the foot E, I place ahasp,F, and correspondingly situated upon the leg l) I placel a hook orstaple, G. The object of this is that, when the two legs C and D aredrawn together so that the feet E will not strike the unison-work, theymay be hooked together by means of the said hasp and staple, and held asshown in fig. 2, so that the cover may be removed.

When the cover is replaced the hasp is forced out of the staple, and thespring of the legs .forces them outward until the feet E strike thelower side of the wall, as shown in iig. and, when thus fastened, thecover cannot bev pried olf from without; for whether the feet are curved'or made at right angles with the leg, theirextremities will hear firstupon the wall, and thus prevent them from slipping.

The advantage which my improvement has `over others of this class isthat it may be adapted to any common cover now used without` altering ormaking any change-inthe position or size of the hole.

Having thus fully described my invention,

What I claim as new and useful, aud desire to secure by Letters Patent,s The spring bars C and I), when applied t0 a coa-lhole cover, andprovided with a hasp and staple, F G, in the manner and for the purposesubstantially as herein specified. v

This specification signed and witnessed this 8th day of June, 1870.

LEWIS A. KIMBERL-Y. Witnesses EDWARD A. THOMPSON, FRANK PnEscoTr.

